Q5: why is it necessary to rinse the inside of erlenmeyer flask with di water periodically?

The Erlenmeyer flask, which is also known as the conical flask, should be rinsed periodically using the deionized water because the Erlenmeyer flask is used for titrations and most of the titrations involve ions. Cleaning the Erlenmeyer flask with normal water will lead to the addition of the extra ions and this will disrupt the titration readings. Hence, the conical flask should be cleaned with deionized water to obtain correct results.

humans are now responsible for causing changes in the environment that hurt animals and plant species. we take up more space on earth for our homes and cities. we pollute habitats. human activity often changes or destroys the habitats that plants and animals need to survive.